/* Tencent is pleased to support the open source community by making Hippy available.
 * Copyright (C) 2018 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.tencent.mtt.hippy.dom.node;

import android.annotation.TargetApi;
import android.os.Build;
import android.text.TextPaint;
import android.text.style.MetricAffectingSpan;

@SuppressWarnings({"unused"})
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public class HippyLetterSpacingSpan extends MetricAffectingSpan {

  final float mSpace;

  public HippyLetterSpacingSpan(float mSpace) {
    this.mSpace = mSpace;
  }

  @Override
  public void updateMeasureState(TextPaint p) {
    if (!Float.isNaN(mSpace)) {
      p.setLetterSpacing(mSpace / p.getTextSize());
    }
  }


  @Override
  public void updateDrawState(TextPaint tp) {
    if (!Float.isNaN(mSpace)) {
      tp.setLetterSpacing(mSpace / tp.getTextSize());
    }
  }
}
